"We have been delighted with the way fans have got behind the game, especially considering the challenging economic climate," NFL UK managing director Alistair Kirkwood said in a statement. "The response is indicative of the must-see nature of our game and the place it has cemented in the UK sports calendar.

"Now that people who signed up for our registry of interest have had an opportunity to buy, we are releasing some tickets for general sale. For this game to have sold even more quickly than the previous two NFL regular-season games in the UK is a testament to the support and loyalty of fans here in the UK and proof of a growing audience for the sport."

In addition to those already sold, a limited number of additional tickets have been made available to the general public at www.ticketmaster.co.uk through this Sunday's Super Bowl.